منابع مشابه
Understanding Regression Discontinuity Designs As Observational Studies
Thistlethwaite and Campbell (1960) proposed to use a “regression-discontinuity analysis” in settings where exposure to a treatment or intervention is determined by an observable score and a fixed cutoff. The type of setting they described, now widely known as the regression discontinuity (RD) design, is one where units receive a score, and a binary treatment is assigned according to a very spec...
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1. Divisão de Pneumologia, Instituto do Coração – InCor – Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (SP) Brasil. 2. Methods in Epidemiologic, Clinical and Operations Research–MECOR–program, American Thoracic Society/Asociación Latinoamericana del Tórax. 3. Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles (CA...
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The challenge for specifying and designing complex sensor based smart space is how to precisely capture communicating behaviors, sensor constraints, and real-time system properties in a highly abstract, modular and integrated way. In particular, the high level design models for the smart systems need to capture not only concurrent interactions between various software control units and physical...
متن کاملEvidence factors in observational studies
Some experiments involve more than one random assignment of treatments to units. An analogous situation arises in certain observational studies, although randomization is not used, so each assignment may be biased. If each assignment is suspect, it is natural to ask whether there are separate pieces of information, dependent upon different assumptions, and perhaps whether conclusions about trea...
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ژورنال
عنوان ژورنال: Journal of General Internal Medicine
سال: 2014
ISSN: 0884-8734,1525-1497
DOI: 10.1007/s11606-014-2859-0